Change Outgoing Server settings

Change advanced encryption settings

Set the Incoming server (IMAP): port to 143 and the type of encryption to TLS.
Set the Outgoing server (SMTP): port to 587 and the type of encryption to TLS.
Click on OK to close the advanced settings dialogue. Back in the Add Account dialogue click on Next to continue.

Test Account Settings

Outlook is proceeding with testing the account settings. This should succeed and the dialogue can be closed by a click on ”Close*.

Finish

The account is configured and ready for use. Close the wizard by a click on Finish.